pelletier and f



A. 1. PEL'LEIIER AND F. BELISLE.

COMBINED SWITCH AND FUSE. APPLICATION. FILED MAR. 22, 1918.

Patented Nov. 11,1919.

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AcmLLE'fq. BELLETIEB an rEnnANb BEL ism, oF om'rAwA, QN'TARI QCANADA;

c omsinnn swnciinnn Fuse.

Ap lication m uar'en 22,1913. Serial mi. 224,047.

To an whom it may (mm.-

Be it-known that we, Acnitnn Josnrn Pniyiin'rrnn and FERNAN'I) Bi 'imsnin citizens of .Canada,.res1ding .at Ottawa, 111 the countyof Carletonfifn the Province of Ontario, Canada, have jointly invented certain new and .use'fiil ln'lproven ents in Combined Switches and Fuses, of which the follow ng is a. specification.

Th s invention relates to a "combined switch and. fuse havinga detachable .con-

necti'ng elementcarrying one or -more in closed renewable fuses.-

The-*objectbfthe invention is- ;to provide a switch, cut-out 0r'sin1ilar c1evice having ih closed renewable fuses, carried by a readily detachable carrierwhichis adapted'to heengaged with and disengaged ifiorn the- -sta-' showing Contact plates projecting interiorlyv and exteriorly thereof; Fig.- 7 is a detail of" ahracket'melnber; Fig. 8 is a detail of the. lockin'g memberyl ig. is ,9. view of a modified 'construction of aone way support- 'tionary contacts for closing and opening in place after a fuse has blown.

. To thcse'. ends' this; invention consists -o f an electi'ieswitehand of the construction,

arrangement and combinationof thef'parts particularly pointed out in t e Claims at the encl'of'this specification.

vIn the-accompal iying drawings, Figure is a perspecti-veviewof a two 'wirecircuit switch, showing an improved: method ofinclosing and mounting afuseor fuses on the detachable arm of the 'switc h, embodying our. invention; Fig. -2 is aside view of the switch Fig. 3is a longitudinal sectionof a one, three, five and other odd numbered wire circuits; Fig; 4 isafro'nt view of a. fuse car; v rierprovlded' w th two fuses, thecaslngbe ing removed; Flg. 5;. s' a s de vIew' of'a'dou tron an'expanslon chamber in associable ffi'scarriershowing one-fuse: in position therewith; Fig. 6 is aview of the-casing ing bracket; Fig. 10 is ahde'tail of'the lockingrnen er as shown in Fig. 9; Fig.;11 is a} view of a twoway snpporting brac'ket;

In the different. figures-of thefdrawings t e same 'elenient.

. the samereference character is used to identhe main circuit wires. .Near the opposite end of t e base: are the contact plates '4, pros cinanbn 6! Letters Patent. 1 Patented 9,

video jwitlnhinclingscrews 5 by-which the f branch *eiicnit wires are secured, to these contacts.

' Mounted-on" the base a substantially-- U-shap'ed bracket (3,.cachfar1n otwhich is provided with an open slot-Q3- adapted to accommodate a pin-19 carried-by thenl'm o1" connecting element 9'. 'l he-hiacket 6 has'a base 24 adapted to be, secured tothe' s'i'viteh' the dircuit, The-arrangement is sncl1=-'that-' thei'uses are readilyaccessible andniay be H renewed with 'absolutesa-fety b unskilled persons while being so attaehec and they.- may he qni'cklyfreinoved from and inserted base '1 by inean's of screws 25, and each 'al'ni across and beyond the slot'openings', so as to gnear this base is. provided with-a hole or opening-26. "Mounted onthe bracket 6 isa donblehell cranklever 7 pivoted atthe angle cooperate'with the 'pin "19, thereby detach ably maintaining the'amn or connecting element in engagei'nent withthefbracket 6 thereof as hereinafter described, -and-more The lever 7 as shown in. Fig.8 is fofined --frorn aHsinglepiece (if-wire, which i's fiI st hent'han' pin shaped, the two-"legs then be{ ;1ng.tbent entwart 1y at apolnt about" one third 'the ,(list'ance froxnthe bight' 27 as shown at 28,- and in the same-horizontal plane-wherein illns'tratedas the hight of the hair pin, these portions being again bent at right angle to the-arms 28; and extending The portions 28i'are adapted to project *inthe same vertical plane as these latter. single. fnse-ca-rrienshow ng the fuse securedthereto as adapte'cl for'usewlth. swltehes for holes constitute a pivot 'for t ieibellcranki .A- spring 8 has 'one end attached to the {high-i127 ofthe lever -7 andfits opposite end to the base 1,- so that this locking member is resiliently retained in] "operative position.

Coiled springs surroundingthe-portions 28 i I and.fseeured thereto'and to the bracket 6- .ouldbe snbstitnted for thesprings; This being a well known alternative a'rra'ngement it isnct illustrated. Moreover the bracket COilld-bfi placed with the'open slots'directed that shown in Fig 2'. In this case spring would lie. positionelbelow the bracket (S'as 'npwar'dly, that is, in the reverse position-to iio shown in Fig- 9,01. thelocking device could be dispensed with. In either arrangen'ient the arm 9 may be readily attached to and detached from the bracket 6, and would be securely held when in operative position. The base is provided with a pair of spring finger clamps 10 to hold the connecting element in a non-contacting position when desired, also to effect a snap action when said- -element is moved from the position shown tending from one end almost to the other,

- the casing is slid home.

and has an expansion chamber 17 intermediate between the ends of the slots. The in closing casing carries apairof contact plates 12 at diametrically opposite points near each end which project through and extend inwardly from the inner surface of the casing wall.

The inclosing casing is adapted to slide endwise over the carrier 13; the inner projecting portions of the contact plates traversing the slots 14, and being thereby guided to engage the fuse or fuses at points spaced apart longitudinally thereof llhe inner projecting portions of the contact plates are of such length that they firmly bind the fuse or fuses between them and the carrier, at the points of contact when One end of the fuse is inserted in the slots or recesses 16 in the carrier so as to retain them in position.

The fuse'carrier 13 which is made of nonconductive :material, is provided with an (EX- pansion chamber 17 on "each fuse support in juxtaposition to the fusewhen in position.

A rod 18. passes centrally through the carrier and projects beyond each of its ends, car-f ries a pin 19 at one end by which it is piv-' otally secured to the bracket 6, and is screw threaded at the other end to receive an in-- teriorly' threaded cap or nut 20, adapted to force the easing into engagement with the projection 21. Between the'projection. 21 and the end of the casing a washer 22 is interposed to produce a gas tight joint.

The design shown in Fig. 9 differs from that hereinbefore described'in the form of the locking element and the mode of mounting it relatively to the bracket 6. The element 7 is substantially U shaped and is applied from the back of the switch base, its arms projecting through slots provided in the base. The spring 8 is secured to the rearwardly directed position of the lever and the rear face of said base.

The design of the bracket shown in Fig. 11 is adapted to support a pair of switch.

' class.

arms 9, and is of the modified construction set forthin Fig. 9,

In a switch for a two wire circuit thevcarrier is designed to receive two fuses as shown in Fig. 4E, and the body of the carrier is di mensioned to engage the casing tightly .between the fuse slots 14 and expansion chamber 17, so that the are from one fuse which has blown will not injure the othcrl This invention is applicable to switches for use with circuits of any number of wires, and also to two way or double throw switches. The stationary contacts may be of any design, asmay also the fusible conductors, which may beheld in position on the carrier. by any suitable means which will not interfere with the assemblyof carrier and casing.

The operation of our switch is clearly set forth in the preceding portion of this description. To replace a fuse that has blown, the connecting element is rotated about the pivotal joint formed by the bracket 6 and the pin 19, so that the contacts 12 are disconnected from the stationary contacts; 2 {i0 and 4:, is then detached from the bracket 6, the cap or nut unscrewed, and the outer case ing removed. A new fuse having beeirsecured in position on .the carrier-the arms 7 being in the position shown in dotted lines in Fig. 2,the casing is slid"tbereover into position and the cap or nutis screwed up tight on the rod 18. The pin 19 of the connecting element is engaged with the lever 7 which is oscillated against theaction cf '100 the spring 8 so as to uncover the slots inthe bracket 6, the pin is free to enter said slots, and the arm is afterward rotated into position with the contacts 12, engaging the contacts 2 and 4 on the base. he spring clamps 10 are offset intermediate of their length to snap said connecting element into operative position.

A switch designed as hereinbefore described, combines the advantages of a knife switch or cut out and a fuse block, since the contacts are as effective as a knife blade, the break in the circuit is as positive, and the fuse is inclosed in a casing and interposed between movable contacts mounted on said casing.

From this it will be seen that we have de vised a very simple and effective switch which may be economically manufactured, embodies both the switching and protective function, is durable in construction, is fool proof and the insulated fusible 'cond actors are more readily placed in and removed from position'than in other switches of this It is fool proof since no tools are employed in effecting renewals,.hence the dan-' ger of short-circuiting the line, or shocking the person making renewals is absolutely eliminated, by virtue of the fact that the -tion of the parts entering into our construction within the spirit of our invention, the

'} rcferi.'ed construction of which We have herein described. Consequently we do not wishto be limited by this disclosure, but claim all the modifications and equivalent constructions coming Within the scope of the appended claims.

What we claim and dcsire to secure by Letters Patent is:

1. A cut-out comprising a base, contacts thereon, an arm carryinga fuse to connect said contacts, a bracket, means on the arm dctac'hably engaging said b acket, and re siliently controlled locking in iansto secure said arm to the bracket, substantial y. as described.

52. A cutout comprising a base, contacts thereon, an arm carrying a fuse to connect said contacts, a pin secured to said arm, a bracket provided with slots, the pin adapted to be entered into said slots and cooperating with the bracket to constitute a pivot-joint, and locking means to retain said pin in said slots, substantially as described.

3. A cut-out comprising a base, contacts thereon, an arm carrying a fuse to connect said contacts, aseparable pivot-joint to connect said arm to the base, and spring controlled locking means for said j oint, substantially as described.

I? 4. A cut-out consisting of a base, contacts thereon, an arm comprising a. fuse carrier, a fuse thereon means detach-abl secured thereto having contacts engaging said fuse and adapted to engage said first mentioned contacts, and means sepa ate from said first mentioned contacts to secure said arm to the base, and locking i'neans for said securing means, substantially as described.

A cut-out consisting of base, contacts thereon, an arm comprising a fuse carrier,

a fuse thereon, means detachably secured thereto having contacts engaging said fuse and adapted to engage said first mentioned contacts, and means separate from said first mentioned contacts to detachabiy secure said arm to the base, and locking means for said detachable securing means, substan tially as described.

6. A cut out consisting of a base, contacts thereon, an arm comprising a fuse carrier, a fuse thereon, means detachably secured thereto having contacts engaging said fuse and adapted to enga-g 7. A cut-out consisting of a base, contacts tlicreon, an arm comprising a fuse carrier, a fuse thereon, means detachably secured thereto having contacts engaging said fuse and adapted to engage said first mentioned contacts,'and means eparate from said first mentioned contacts detachably and )ivota-lly securing said arm to the base, and locking means for said securing means, substantially as described.

8. A cut-out consisting of a base, contacts thereon, an arm comprising a fuse carrier, a fuse thereon, means detachably secured thereto having contacts, engaging said fuse e said first mentioned contacts, a bracket alill means engaging said bracket for securing said arm to the bracket, and locking means for said securing means, substantially as described.

9. A cut-out consisting of a base, contacts thereon, an arm comprising a fuse carrier, a fuse thereon, means de'tachably secured thereto having contacts engaging said fuse'and adapted to engage said first mentioned contacts, a bracket and means detachably engaging said bracket for securing said arm to the bracket, and locking means for said detach-able securing means, substantially as described.

10. A cut-out consisting of a base, contacts thereon, an arm comprising a fuse carrier, a fuse thereon, means detachably se- 'cure d thereto having contacts engaging said fuse and adapted to engage said first mentioned contacts, a bracket and means pivotally engaging said bracket for securing said arm to the bracket, and locking means for said pivotal securing means, substantially as described.

11. A cut-out consisting of a base, contacts thereon, an arm comprising a fuse carrier, a fuse thereon, means dc-tach ably secured thereto having contacts engaging said fuse and adapted to engage said first mentioned contacts, a bracket and means detachably and pivotally engaging said bracket for securing said arm to the bracket, and locking means for said securing means, substantially as described.

' A. J. PELLETIER.

FERNAND BELIsLE.

Witnesses I F. Bnn'rnANn, ROMEO R. MARCIL. 

